All you have to do is follow these steps:
1. If you havnt done so already, Connect to facebook (if you dont know how, click Here)
2. Click Here and like the page if you havn't done so already.
3. Click Here
4. You should see this:
5. Then click the "accept this gift" button:
6. You should then be redirected to another page.
7. You should find the dress in your suite and the other items should turn up soon! :D